A power independent detection method for ultra wide band (UWB) impulse radio networks

We propose a novel detection method for noncoherent synchronization (signal acquisition) in multi-access UWB impulse radio (IR) networks. It is designed to solve the IUI (inter-user interference) that occurs in some ad-hoc networks where concurrent transmissions are allowed with heterogeneous power levels. In such scenarios, the conventional detection method, which is based on correlating the received IR signal with a template pulse train (TPT), does not always perform well. Our proposal has similar complexity as the conventional method. We evaluate its performance with the line of sight (LOS) office indoor channel model proposed by the IEEE P802.15.4a study group and find that the improvement is significant.

[1]  Luca Reggiani,et al.  A reduced-complexity acquisition algorithm for UWB impulse radio , 2003, IEEE Conference on Ultra Wideband Systems and Technologies, 2003.

[2]  Gerard J. M. Janssen,et al.  Analysis and comparison of autocorrelation receivers for IR-UWB signals based on differential detection , 2004, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[3]  Liuqing Yang,et al.  Blind UWB timing with a dirty template , 2004, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[4]  Andreas Polydoros,et al.  A Unified Approach to Serial Search Spread-Spectrum Code Acquisition - Part I: General Theory , 1984, IEEE Transactions on Communications.

[5]  Synchronizing Method for Impulse Radio Network , 2005 .

[6]  Luca De Nardis,et al.  (UWB)2: Uncoordinated, Wireless, Baseborn Medium Access for UWB Communication Networks , 2005, Mob. Networks Appl..

[7]  Jean-Yves Le Boudec,et al.  A Power Independent Detection (PID) Method for Ultra Wide Band Impulse Radio Networks , 2005 .

[8]  L.B. Milstein,et al.  Non-coherent code acquisition for UWB systems in dense multipath fading channels , 2005, 2005 IEEE 61st Vehicular Technology Conference.

[9]  Andreas F. Molisch,et al.  A rapid acquisition technique for impulse radio , 2003, 2003 IEEE Pacific Rim Conference on Communications Computers and Signal Processing (PACRIM 2003) (Cat. No.03CH37490).

[10]  J. Foerster,et al.  Channel modeling sub-committee report final , 2002 .

[11]  Moe Z. Win,et al.  Ultra-wide bandwidth time-hopping spread-spectrum impulse radio for wireless multiple-access communications , 2000, IEEE Trans. Commun..

[12]  Urbashi Mitra,et al.  Synchronization and channel estimation for UWB signal , 2003, GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489).

[13]  Marwan Krunz,et al.  CDMA-based MAC protocol for wireless ad hoc networks , 2003, MobiHoc '03.

[14]  Liuqing Yang,et al.  Symbol timing estimation in ultra wideband communications , 2002, Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002..

[15]  Ning He,et al.  Adaptive synchronization for non-coherent UWB receivers , 2004, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[16]  Jörg Widmer,et al.  A joint PHY/MAC architecture for low-radiated power TH-UWB wireless ad hoc networks , 2005, Wirel. Commun. Mob. Comput..

[17]  Robert A. Scholtz,et al.  HYBRID FIXED-DWELL-TIME SEARCH TECHNIQUES FOR RAPID ACQUISITION OF ULTRA-WIDEBAND SIGNALS , 2003 .

[18]  Martin Vetterli,et al.  Low-sampling rate UWB channel characterization and synchronization , 2003, Journal of Communications and Networks.

[19]  Rittwik Jana,et al.  Measurement and modeling of an ultra-wide bandwidth indoor channel , 2004, IEEE Transactions on Communications.

[20]  Alaeddine El Fawal,et al.  Fast Synchronization in UWB Self-Organized Networks and in the Absence of Power Control Doctoral School Project , 2022 .

[21]  Moe Z. Win,et al.  Ultra-wide bandwidth signal propagation for indoor wireless communications , 1997, Proceedings of ICC'97 - International Conference on Communications.

[22]  R.A. Scholtz,et al.  Rapid acquisition of ultra-wideband signals in the dense multipath channel , 2002, 2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580).